/* ==========================================================================
   Finoras Lernplattform – Stylesheet
   Design: warmes Offwhite, weiche Pastellkarten, ruhig & modern.
   Schrift: Sora (Display) / Inter (Text) / IBM Plex Mono (Zahlen & Codes)
   ========================================================================== */

:root {
  /* Farben */
  --color-bg: #f7f4ee;
  --color-surface: #ffffff;
  --color-surface-soft: #fbfaf6;
  --color-ink: #2b2a28;
  --color-ink-soft: #4a4740;
  --color-muted: #78736a;
  --color-border: #ece7dd;

  --color-green: #cfe3d3;
  --color-green-strong: #4f9d72;
  --color-green-ink: #1f4d33;

  --color-lilac: #e3dbf3;
  --color-lilac-strong: #8e6fd1;
  --color-lilac-ink: #3f2f66;

  --color-blue: #d8e8f3;
  --color-blue-strong: #3f86b8;
  --color-blue-ink: #1d425c;

  --color-yellow: #fbeec1;
  --color-yellow-strong: #c99a2e;
  --color-yellow-ink: #5c4715;

  --color-red-strong: #c15b4a;
  --color-red-bg: #f7e3df;

  /* Radien & Schatten */
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-soft: 0 10px 28px rgba(43, 42, 40, 0.07);
  --shadow-tiny: 0 2px 8px rgba(43, 42, 40, 0.06);

  /* Abstände */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;

  /* Typografie */
  --font-display: "Sora", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "Consolas", monospace;

  --sidebar-width: 240px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  margin: 0;
  color: var(--color-ink);
}

p {
  margin: 0;
}

button {
  font-family: var(--font-body);
  cursor: pointer;
}

a {
  color: inherit;
}

/* Barrierefreiheit: sichtbarer Fokus */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--color-blue-strong);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

.hidden {
  display: none !important;
}

/* ==========================================================================
   App-Layout
   ========================================================================== */

.app-shell {
  display: flex;
  min-height: 100vh;
}

/* --- Sidebar (Desktop) ------------------------------------------------- */

.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  padding: var(--space-5) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0 var(--space-2);
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-green-strong), var(--color-blue-strong));
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--color-ink-soft);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
}

.nav-item .nav-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.nav-item:hover {
  background: var(--color-surface-soft);
}

.nav-item.is-active {
  background: var(--color-green);
  color: var(--color-green-ink);
}

.sidebar-footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.user-chip {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-2);
  border-radius: var(--radius-sm);
  background: var(--color-surface-soft);
  font-size: 0.85rem;
  color: var(--color-muted);
}

.logout-btn {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  font-size: 0.85rem;
  color: var(--color-muted);
}

.logout-btn:hover {
  border-color: var(--color-red-strong);
  color: var(--color-red-strong);
}

/* --- Main content -------------------------------------------------------- */

.main {
  flex: 1;
  min-width: 0;
  padding: var(--space-6) var(--space-7);
  padding-bottom: 120px; /* Platz fuer Bottom-Nav auf Mobile */
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-6);
  gap: var(--space-4);
  flex-wrap: wrap;
}

.greeting {
  font-size: 1.7rem;
}

.subheading {
  color: var(--color-muted);
  margin-top: var(--space-1);
  font-size: 1rem;
}

.demo-banner {
  background: var(--color-yellow);
  color: var(--color-yellow-ink);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-4);
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

/* ==========================================================================
   Karten
   ========================================================================== */

.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: var(--space-5);
}

.card-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.grid {
  display: grid;
  gap: var(--space-5);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 900px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

/* --- Klassenarbeit-Karte (Signatur-Element: Tage-Pfad) ------------------- */

.exam-card {
  background: linear-gradient(135deg, var(--color-lilac) 0%, var(--color-blue) 100%);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-5);
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.exam-headline {
  font-family: var(--font-mono);
  font-size: 2.1rem;
  font-weight: 600;
  color: var(--color-lilac-ink);
  letter-spacing: -0.01em;
}

.exam-date {
  color: var(--color-ink-soft);
  margin-top: var(--space-1);
  font-size: 0.95rem;
}

.exam-status {
  display: inline-block;
  margin-top: var(--space-3);
  padding: var(--space-1) var(--space-3);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.6);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-lilac-ink);
}

/* Tage-Pfad: eine Reihe aus Punkten, einer pro verbleibendem Tag */
.day-trail {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: var(--space-4);
  flex-wrap: wrap;
}

.day-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.65);
  flex-shrink: 0;
}

.day-dot.is-today {
  width: 14px;
  height: 14px;
  background: var(--color-lilac-strong);
  box-shadow: 0 0 0 4px rgba(142, 111, 209, 0.25);
}

.exam-actions {
  margin-top: var(--space-5);
}

.btn {
  border: none;
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-5);
  font-weight: 700;
  font-size: 0.95rem;
  font-family: var(--font-body);
  transition: transform 0.08s ease, box-shadow 0.08s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--color-ink);
  color: #fff;
}

.btn-primary:hover {
  box-shadow: var(--shadow-tiny);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.75);
  color: var(--color-ink);
  border: 1px solid rgba(43, 42, 40, 0.12);
}

.btn-secondary:hover {
  background: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--color-ink-soft);
  border: 1px solid var(--color-border);
}

.btn-block {
  width: 100%;
}

.btn-lg {
  padding: var(--space-4) var(--space-5);
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

/* --- Fortschritt: Ring ---------------------------------------------------- */

.progress-card {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  flex-wrap: wrap;
}

.progress-ring-wrap {
  position: relative;
  width: 120px;
  height: 120px;
  flex-shrink: 0;
}

.progress-ring {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: conic-gradient(var(--color-green-strong) calc(var(--pct, 0) * 1%), var(--color-border) 0);
  display: flex;
  align-items: center;
  justify-content: center;
}

.progress-ring::before {
  content: "";
  position: absolute;
  inset: 12px;
  background: var(--color-surface);
  border-radius: 50%;
}

.progress-ring-value {
  position: relative;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
}

.progress-breakdown {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
  min-width: 180px;
}

.progress-bar-row {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.progress-bar-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  color: var(--color-ink-soft);
  font-weight: 600;
}

.progress-bar-track {
  height: 10px;
  border-radius: 999px;
  background: var(--color-border);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 999px;
}

.progress-bar-fill.is-vokabeln {
  background: var(--color-blue-strong);
}

.progress-bar-fill.is-grammatik {
  background: var(--color-lilac-strong);
}

/* --- Heutige Lernrunde: Hero-CTA ------------------------------------------ */

.today-hero {
  background: var(--color-green);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-5);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.today-hero-eyebrow {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--color-green-ink);
}

.today-hero-title {
  font-size: 1.6rem;
}

.today-hero-stats {
  display: flex;
  gap: var(--space-5);
  flex-wrap: wrap;
}

.stat-pill {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-pill-value {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-green-ink);
}

.stat-pill-label {
  font-size: 0.8rem;
  color: var(--color-ink-soft);
}

/* --- Kleine Karten (Schwierige Vokabeln, Grammatik-Vorschau) -------------- */

.mini-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.word-chip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--color-surface-soft);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
}

.word-chip-en {
  font-weight: 700;
}

.word-chip-meta {
  font-size: 0.8rem;
  color: var(--color-muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
}

.badge-unsicher {
  background: var(--color-red-bg);
  color: var(--color-red-strong);
}

.badge-sicher {
  background: var(--color-green);
  color: var(--color-green-ink);
}

.badge-neu {
  background: var(--color-blue);
  color: var(--color-blue-ink);
}

/* ==========================================================================
   Lernrunde (Vokabeln)
   ========================================================================== */

.session-wrap {
  max-width: 620px;
  margin: 0 auto;
}

.session-progress {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
  font-size: 0.9rem;
  color: var(--color-muted);
}

.session-progress-track {
  height: 8px;
  border-radius: 999px;
  background: var(--color-border);
  overflow: hidden;
  margin-bottom: var(--space-5);
}

.session-progress-fill {
  height: 100%;
  background: var(--color-green-strong);
  border-radius: 999px;
  transition: width 0.25s ease;
}

.session-tally {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.tally-item {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  font-weight: 600;
}

.tally-item .tally-value {
  font-family: var(--font-mono);
}

.flashcard {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: var(--space-7) var(--space-5);
  text-align: center;
}

.flashcard-source {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-bottom: var(--space-3);
}

.flashcard-word {
  font-family: var(--font-display);
  font-size: 2.1rem;
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.flashcard-question {
  color: var(--color-muted);
  margin-bottom: var(--space-5);
}

.flashcard-input {
  width: 100%;
  padding: var(--space-4);
  font-size: 1.1rem;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-border);
  font-family: var(--font-body);
  text-align: center;
  margin-bottom: var(--space-4);
  background: var(--color-surface-soft);
}

.flashcard-input:focus {
  border-color: var(--color-green-strong);
  outline: none;
}

.flashcard-feedback {
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-top: var(--space-4);
  text-align: left;
}

.flashcard-feedback.is-correct {
  background: var(--color-green);
  color: var(--color-green-ink);
}

.flashcard-feedback.is-incorrect {
  background: var(--color-red-bg);
  color: var(--color-red-strong);
}

.flashcard-feedback-title {
  font-weight: 700;
  margin-bottom: var(--space-1);
}

.flashcard-example {
  margin-top: var(--space-4);
}

.example-toggle {
  background: none;
  border: none;
  color: var(--color-blue-strong);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0;
}

.example-text {
  margin-top: var(--space-2);
  font-style: italic;
  color: var(--color-ink-soft);
  background: var(--color-surface-soft);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
}

.session-summary {
  text-align: center;
  padding: var(--space-7) var(--space-5);
}

.session-summary .stat-row {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  margin: var(--space-5) 0;
}

/* ==========================================================================
   Grammatik
   ========================================================================== */

.grammar-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.grammar-item {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: var(--space-5);
  cursor: pointer;
  border: 2px solid transparent;
}

.grammar-item:hover {
  border-color: var(--color-lilac-strong);
}

.grammar-item-theme {
  font-size: 0.8rem;
  color: var(--color-lilac-strong);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-1);
}

.grammar-item-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.grammar-detail-section {
  margin-top: var(--space-5);
}

.grammar-detail-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-lilac-strong);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.grammar-mnemonic {
  background: var(--color-lilac);
  color: var(--color-lilac-ink);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  font-size: 1.02rem;
}

.grammar-example {
  background: var(--color-surface-soft);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  font-family: var(--font-mono);
  font-size: 0.95rem;
}

.grammar-try-box {
  background: var(--color-blue);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.grammar-try-options {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-3);
  flex-wrap: wrap;
}

.option-btn {
  background: var(--color-surface);
  border: 2px solid var(--color-blue-strong);
  color: var(--color-blue-ink);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-4);
  font-weight: 600;
}

.option-btn.is-correct {
  background: var(--color-green);
  border-color: var(--color-green-strong);
}

.option-btn.is-wrong {
  background: var(--color-red-bg);
  border-color: var(--color-red-strong);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-muted);
  font-weight: 600;
  font-size: 0.9rem;
  background: none;
  border: none;
  margin-bottom: var(--space-4);
  padding: 0;
}

/* ==========================================================================
   Materialien
   ========================================================================== */

.upload-zone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  background: var(--color-surface-soft);
}

.upload-zone-icon {
  width: 42px;
  height: 42px;
  margin: 0 auto var(--space-3);
  color: var(--color-muted);
}

.upload-preview {
  margin-top: var(--space-5);
  display: flex;
  gap: var(--space-4);
  align-items: center;
  flex-wrap: wrap;
}

.upload-preview img {
  width: 90px;
  height: 90px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-tiny);
}

.file-badge {
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  box-shadow: var(--shadow-tiny);
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-top: var(--space-4);
}

.form-row label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-ink-soft);
}

select,
input[type="date"],
input[type="text"] {
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--color-surface);
}

.material-list {
  margin-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.material-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  box-shadow: var(--shadow-tiny);
  gap: var(--space-3);
  flex-wrap: wrap;
}

.material-row-name {
  font-weight: 700;
}

.material-row-meta {
  font-size: 0.8rem;
  color: var(--color-muted);
}

.status-chip {
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
}

.status-hochgeladen {
  background: var(--color-blue);
  color: var(--color-blue-ink);
}

.status-in-bearbeitung {
  background: var(--color-yellow);
  color: var(--color-yellow-ink);
}

.status-ausgewertet {
  background: var(--color-green);
  color: var(--color-green-ink);
}

.recognized-box {
  margin-top: var(--space-4);
  background: var(--color-surface-soft);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.recognized-box h4 {
  font-size: 1rem;
  margin-bottom: var(--space-3);
}

.recognized-box ul {
  margin: 0 0 var(--space-4) 0;
  padding-left: 1.1em;
}

.recognized-actions {
  display: flex;
  gap: var(--space-3);
}

.form-error {
  color: var(--color-red-strong);
  font-size: 0.85rem;
  margin-top: var(--space-3);
}

.form-success {
  color: var(--color-green-ink);
  font-size: 0.85rem;
  margin-top: var(--space-3);
  font-weight: 600;
}

/* ==========================================================================
   Modal (Klassenarbeitsdatum aendern)
   ========================================================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(43, 42, 40, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  z-index: 100;
}

.modal-box {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  max-width: 400px;
  width: 100%;
  box-shadow: var(--shadow-soft);
}

.modal-box h3 {
  margin-bottom: var(--space-2);
}

.modal-box p {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin-bottom: var(--space-4);
}

.modal-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-5);
  justify-content: flex-end;
}

/* ==========================================================================
   Login-Seite
   ========================================================================== */

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  padding: var(--space-4);
}

.login-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: var(--space-7) var(--space-6);
  max-width: 380px;
  width: 100%;
}

.login-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.login-title {
  font-size: 1.4rem;
  margin-bottom: var(--space-1);
}

.login-subtitle {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin-bottom: var(--space-6);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.login-form input {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  font-size: 1rem;
  background: var(--color-surface-soft);
}

.login-form input:focus {
  border-color: var(--color-green-strong);
  outline: none;
}

.login-note {
  margin-top: var(--space-5);
  font-size: 0.78rem;
  color: var(--color-muted);
  background: var(--color-surface-soft);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
}

/* ==========================================================================
   Bottom-Navigation (Mobile)
   ========================================================================== */

.bottom-nav {
  display: none;
}

@media (max-width: 860px) {
  .sidebar {
    display: none;
  }

  .main {
    padding: var(--space-4);
    padding-bottom: 96px;
  }

  .bottom-nav {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: var(--space-2) var(--space-1);
    justify-content: space-between;
    z-index: 50;
    box-shadow: 0 -6px 20px rgba(43, 42, 40, 0.06);
  }

  .bottom-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    background: none;
    border: none;
    color: var(--color-muted);
    font-size: 0.65rem;
    font-weight: 600;
    padding: var(--space-1);
  }

  .bottom-nav-item.is-active {
    color: var(--color-green-ink);
  }

  .bottom-nav-item .nav-icon {
    width: 20px;
    height: 20px;
  }

  .topbar {
    margin-bottom: var(--space-4);
  }

  .greeting {
    font-size: 1.35rem;
  }

  .progress-card {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 500px) {
  .today-hero-stats {
    gap: var(--space-4);
  }

  .flashcard {
    padding: var(--space-5) var(--space-4);
  }

  .flashcard-word {
    font-size: 1.6rem;
  }
}